Struct predicates::predicate::NotPredicate

pub struct NotPredicate<M> where
    M: Predicate,  { /* fields omitted */ }

Predicate that returns a Predicate taking the logical NOT of the result.

This is created by the Predicate::not function.

Methods

impl<M> NotPredicate<M> where
    M: Predicate, 

fn new(inner: M) -> NotPredicate<M>

Create a new NotPredicate over predicate inner.

Trait Implementations

impl<M: Debug> Debug for NotPredicate<M> where
    M: Predicate, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<M> Predicate for NotPredicate<M> where
    M: Predicate, 

type Item = M::Item

The type that this Predicate will accept for evaluating.

fn eval(&self, item: &Self::Item) -> bool

Execute this Predicate against variable, returning the resulting boolean.

fn and<B>(self, other: B) -> AndPredicate<Self, B> where
    B: Predicate<Item = Self::Item>,
    Self: Sized, 

Compute the logical AND of two Predicate results, returning the result.

fn or<B>(self, other: B) -> OrPredicate<Self, B> where
    B: Predicate<Item = Self::Item>,
    Self: Sized, 

Compute the logical OR of two Predicate results, returning the result.

fn not(self) -> NotPredicate<Self> where
    Self: Sized, 

Compute the logical NOT of a Predicate, returning the result.

fn boxed(self) -> BoxPredicate<Self::Item> where
    Self: Sized + Send + Sync + 'static, 

Returns a BoxPredicate wrapper around this Predicate type.